1366 - Incorrect integer value: '' for column `sql12320`.`whos_online`.`customer_id` at row 1

insert into whos_online (customer_id, full_name, session_id, ip_address, time_entry, time_last_click, last_page_url) values ('', 'Guest', '961f87565401e1b9a5b498d47b76dfa2', '3.83.188.254', '1585985597', '1585985597', '/shop/product_info.php/info/p173_Pflanzenseife-Lavendel.html')

[XT SQL Error]